Hi all,

Unlike conversions of 0-d arrays via:

    float(np.array([1]))

conversions of 1-D or higher dimensional arrays with a single element
are a bit strange:

    float(np.array([1]))

And deprecating it has come up often enough with many in favor, but
also many worried about the possible annoyance to users.
I decided to give the PR a shot, I may have misread the room on it
though:

    https://github.com/numpy/numpy/pull/10615

So if this turns out noisy (or you may simply disagree), I am happy to
revert!